MUMBAI: The Indian rupee opened with marginal gains at 63.78 per dollar on Wednesday versus 63.82 Tuesday. NS Venkatesh of IDBI Bank said, “Overnight we have seen a rally in the euro and the yen against the dollar. However, our own markets will continue to take cues from the domestic macros. As trade flows get skewed more towards imports than exports – this cut put pressure on the rupee.”